Firmness
Firm
Type
Pocket Spring
Depth (cm)
36
Number of Layers
3
Trial Period (nights)
Warranty (years)
5
Price Range
£569 to £999
Best Sleeping Position(s)
Certifications
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
The wool is the headline here. Authentic Traceable British Wool certification means the Cheviot wool fillings can be traced back to source, and wool itself is a natural temperature regulator. If you're a hot sleeper, that matters more than any synthetic cooling gimmick. The 2000 zoned pocket springs are mounted in separate fabric pockets, which means less motion transfer if you share the bed and targeted support where your body needs it most. Certifications from an NBF-Approved Manufacturer and a Good Housekeeping Institute 2018 nod add reassurance. The retailer page shows no trial period, so you'll want to be confident in a medium firm feel before ordering. MattressNextDay lists free next day delivery to mainland UK, though some addresses may incur a small fee.
Key Features & what's inside
- Cover. A breathable Belgian damask fabric cover. It lets air move through the sleep surface rather than trapping heat against you.
- Comfort Fillings. Generous layers of British Cheviot wool, prized for its fine, soft properties. Wool breathes naturally, which means it helps keep you at a comfortable temperature year round.
- Support System. 2000 zoned pocket springs, each mounted in its own separate fabric pocket so they work completely independently. This gives targeted pressure relief and means one sleeper's movement is less likely to disturb the other.
Layer details from mattressnextday.co.uk product page, September 2026.
Who's it NOT for?
If you prefer a soft, sinking feel, this medium firm mattress will likely feel too solid. There's also no trial period mentioned on the retailer listing, so cautious buyers who want a lengthy at-home test may prefer a brand that offers one. Anyone avoiding animal-derived materials should look elsewhere, as wool is central to its build.
Rest Assured British Wool 2000 Pocket Firmer Mattress
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Is the Rest Assured British Wool 2000 Pocket mattress firm or medium firm?
The product page describes it as medium firm, despite the 'Firmer' in its name. In practice that means noticeable support with a little more give than a true firm mattress, which suits most back and front sleepers, although lightweight side sleepers may still find it slightly too solid.
How deep is the Rest Assured British Wool 2000 mattress?
It's 36cm deep, which is a generous depth. Worth checking your fitted sheets will stretch over it before it arrives.
Does the Rest Assured British Wool 2000 come with a guarantee?
Yes, it comes with a 5 year manufacturer's guarantee from Rest Assured. No trial period is mentioned on the MattressNextDay listing, so check returns terms with your retailer before buying.
What is the Rest Assured British Wool 2000 mattress made of?
It combines British Cheviot wool comfort fillings, natural Purotex and a Belgian damask cover over 2000 zoned pocket springs. The wool carries Authentic Traceable British Wool certification, and the mattress meets the BS7177: 2008 fire resistance standard.
What sizes does the Rest Assured British Wool 2000 come in?
It's available in UK Single, Double, King and Super King, priced from £569.00 up to £999 depending on the size you choose.
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